Filtering Blogger feeds

Wed 10 February 2010 by Lars Kellogg-Stedman Tags pipes rss atom blogger filter

After encountering a number of problems trying to filter Blogger feeds by tag (using services like Feedrinse and Yahoo Pipes), I've finally put together a solution that works:

  • Shadow the feed with Feedburner.
  • Enable the Convert Format Burner, and convert your feed to RSS 2.0.
  • Use Yahoo Pipes to ...
read more

Funny usage message

Mon 08 February 2010 by Lars Kellogg-Stedman Tags development android

I was poking around in a command shell on my Droid to see what was available. While it's a pretty restricted environment, there's a number of commands available in /system/bin, including dexopt.

Apparently dexopt isn't something I'm supposed to poke at:

$ dexopt
Usage: don't use this

Hah.

read more

MBTA realtime XML feed

Sun 07 February 2010 by Lars Kellogg-Stedman Tags xml gps transportation bus location mbta

The MBTA has a trial web service interface that provides access to realtime location information for select MBTA buses, as well as access to route information, arrival prediction, and other features. More information can be found here:

http://www.eot.state.ma.us/developers/realtime/

The service is provided by ...

read more

Blocking VNC with iptables

VNC clients use the RFB protocol to provide virtual display capabilities. The RFB protocol, as implemented by most clients, provides very poor authentication options. While passwords are not actually sent "in the clear", it is possible to brute force them based on information available on the wire. The RFB 3 ...

read more

NFS and the 16-group limit

Tue 02 February 2010 by Lars Kellogg-Stedman Tags groups nfs

I learned something new today: it appears that the underlying authorization mechanism used by NFS limits your group membership to 16 groups. From http://bit.ly/cBhU8N:

NFS is built on ONC RPC (Sun RPC). NFS depends on RPC for authentication and identification of users. Most NFS deployments use an ...

read more